The result is 'Drone Boning', a somewhat on-the-nose project to capture humans doing what comes naturally, out in the open, with flying robots.

Motherboard reports on the movie, which "started as a funny commentary on privacy and voyeurism" but "quickly became a conceptual grounding".

It features various shots of people appearing to have sex in a variety of positions and gender combinations, set in some admittedly beautiful scenery including mountains, farms and beaches, from a height of about 100 feet.

In the interview with Motherboard, Brandon LaGanke (one of the filmmakers at Ghost+Cow Films) said that the aim was to create a "Where's Wally" effect, where the sex is almost incidental to the scene as a whole. He also relates a somewhat troubling incident in which a local walking their dog stumbled on one of the shots being filmed from above.

UPDATE: A previous version of this story said that the people appearing in the film were professional porn actors. We have since been contacted by a member of the cast, who said that they were in fact volunteers who answered an online ad to appear in the film. We apologise for the error.